. . "SDN:P07::CF12N455" . "2019-02-04 14:52:10.0" . . "2" . "2019-02-04 14:52:10.0" . "accepted"@en . "\"Mole concentration\" means number of moles per unit volume, also called \"molarity\", and is used in the construction \"mole_concentration_of_X_in_Y\", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as \"nitrogen\" or a phrase such as \"nox_expressed_as_nitrogen\". The chemical formula for ethyne is HC2H. Ethyne is the IUPAC name for this species, which is also commonly known as acetylene."@en . . "false" . . "SDN:P07::CF12N455" . "2" . . . "SDN:P07::CF12N455" . "" . . . "mole_concentration_of_ethyne_in_air"@en .